A valve permitting flow in one direction only. It does not have a stem, except when equipped with a lever and weight and has no pressure adjustment. It may be inline or cartridge (manifold) design.
NSN 5895-00-061-1071
NSN 5915-01-361-9136
NSN 5985-01-406-3928
NSN 5945-01-307-9673
NSN 6220-01-647-4660
NSN 5965-00-356-3838
NSN 5950-00-815-4448
NSN 5835-01-408-7576
NSN 5975-01-464-2867
NSN 5895-01-199-7583
NSN 5855-00-896-4047
NSN 5950-00-121-1852